Partial discharge detecting device for electrical equipments

Details Partial discharge detecting device for electrical equipments Partial discharge detecting device for electrical equipments

1990-01-24

1991-12-24

Weider, Kenneth A.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

340646, G01R 3106

Patent

active

050756290

ABSTRACT:
A partial discharge detecting device for transformers includes an antenna disposed in a metallic insulation gas filled tank enclosing a core and coil assembly and a signal processing circuit for processing an output signal from the antenna. The antenna includes a magnetic core and a single coil or two coils differently operated. An electromagnetic wave due to the partial discharge is detected by the antenna. A detection signal from the antenna is supplied to the signal processing circuit, which determines whether or not the partial discharge has taken place, based on the detection signal.

REFERENCES:
patent: 1992013 (1935-02-01), Palueff
patent: 3173086 (1965-03-01), Kresge
patent: 3707673 (1972-12-01), Carter
patent: 3801899 (1974-04-01), Liao
patent: 4064454 (1977-12-01), Yoshino et al.
patent: 4095173 (1978-06-01), Darrel
patent: 4131845 (1978-12-01), Pakulis
patent: 4446420 (1984-05-01), Drouet

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